@Donald Barber , Thanks for posting this question!
Just to clarify, when you say, "I want my relatives to be able to execute it online." Are you looking at ways your application users can access/use the provisioned app or control/manage the app?
Is that, a mobile/Web application?
Are you hosting your App on Windows App Store?
Just to highlight, Azure offers several ways to host websites/apps: Azure App Service WebApps (PAAS solution), Virtual Machines (IAAS), Service Fabric, Azure Storage (for static website) and Azure Static Web Apps. Kindly see Decision tree for Azure compute services., for more details on this topic.
On an Azure Virtual Machine (in your case Windows), you would typically perform the exact same steps/process as you would on-premise.